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TW200735071A - Optical recording and reproducing apparatus, optical head, optical recording and reproducing method, and skew detection method - Google Patents

Optical recording and reproducing apparatus, optical head, optical recording and reproducing method, and skew detection method

Info

Publication number
TW200735071A
TW200735071A TW095115590A TW95115590A TW200735071A TW 200735071 A TW200735071 A TW 200735071A TW 095115590 A TW095115590 A TW 095115590A TW 95115590 A TW95115590 A TW 95115590A TW 200735071 A TW200735071 A TW 200735071A
Authority
TW
Taiwan
Prior art keywords
optical recording
skew
reproducing
light
unit
Prior art date
Application number
TW095115590A
Other languages
Chinese (zh)
Other versions
TWI320178B (en
Inventor
Kimihiro Saito
Tsutomu Ishimoto
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of TW200735071A publication Critical patent/TW200735071A/en
Application granted granted Critical
Publication of TWI320178B publication Critical patent/TWI320178B/zh

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

The present invention aims to provide an optical recording and reproducing apparatus, an optical recording and reproducing method, and a skew detection method for easily detecting a skew between an optical recording medium and a near-field light irradiating unit. The optical recording and reproducing apparatus for recording and reproducing an optical recording medium (10) by irradiating light from a light source (20) to the optical recording medium as near-field light from a near-field irradiating unit (26) includes a light-receiving unit (28) for detecting divided light returned from the optical recording medium (10), a control unit (29) for detecting a relative skew between the optical recording medium (10) and the near-field light irradiating unit (26) based on a plurality of gap detection signals generated from divided detection signals of the light-receiving unit (28), and a drive control unit (30) for outputting a drive signal to correct a skew of at least the near-field light irradiating unit (26) to a drive unit (31) in response to a skew detected in the control unit (29). The skew of the near-field light irradiating unit (26) can easily be detected based on a difference among a plurality of gap detection signals.
TW095115590A 2005-05-13 2006-05-02 Optical recording and reproducing apparatus, optical head, optical recording and reproducing method, and skew detection method TW200735071A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005141399 2005-05-13
JP2006109105A JP2006344351A (en) 2005-05-13 2006-04-11 Optical recording and reproducing apparatus, optical head, optical recording and reproducing method and skew detection method

Publications (2)

Publication Number Publication Date
TW200735071A true TW200735071A (en) 2007-09-16
TWI320178B TWI320178B (en) 2010-02-01

Family

ID=36699212

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095115590A TW200735071A (en) 2005-05-13 2006-05-02 Optical recording and reproducing apparatus, optical head, optical recording and reproducing method, and skew detection method

Country Status (6)

Country Link
US (1) US7462855B2 (en)
EP (1) EP1724771B1 (en)
JP (1) JP2006344351A (en)
KR (1) KR20060117213A (en)
DE (1) DE602006004393D1 (en)
TW (1) TW200735071A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005259329A (en) * 2004-02-12 2005-09-22 Sony Corp Tilt control method and optical disc apparatus
US8737178B2 (en) * 2006-09-05 2014-05-27 Seagate Technology Llc Alignment feature for near-field transducers
JPWO2008114406A1 (en) * 2007-03-20 2010-07-01 パイオニア株式会社 Optical pickup and playback device
JP2009070467A (en) * 2007-09-12 2009-04-02 Sony Corp Optical pickup device, optical recording/reproducing device, and gap control method
JP2009158007A (en) * 2007-12-26 2009-07-16 Sony Corp Optical pickup device, optical recording and reproducing device, and gap control method
JP2010033688A (en) 2008-02-28 2010-02-12 Sony Corp Optical pickup device, and recording and reproducing apparatus
EP2256728B1 (en) * 2008-03-18 2012-09-05 Panasonic Corporation Optical recording/reproduction method, optical recording/reproduction device and program
KR100958588B1 (en) * 2008-05-22 2010-05-18 삼성전자주식회사 Method of gap pull in near field optical disk driver and optical disk drive device having such function
US8040774B2 (en) 2008-07-10 2011-10-18 Panasonic Corporation Optical disk device and tilt correction method for optical disk device
KR20100068865A (en) * 2008-12-15 2010-06-24 삼성전자주식회사 Actuator for optical pick-up and optical recording/reproducing apparatus having the same
CN102097111B (en) * 2009-12-15 2012-12-19 建兴电子科技股份有限公司 Tilt Control Method of Near-field Optical Disk Drive
JP5624116B2 (en) 2010-02-26 2014-11-12 パナソニック株式会社 Optical information reproducing apparatus, optical information recording apparatus, optical information reproducing method, and optical information recording method
NL2006458A (en) 2010-05-05 2011-11-08 Asml Netherlands Bv Lithographic apparatus and device manufacturing method.
JPWO2012063484A1 (en) 2010-11-10 2014-05-12 パナソニック株式会社 Optical pickup, tilt angle detection method, optical information apparatus, and information processing apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2866160B2 (en) 1990-07-19 1999-03-08 パイオニア株式会社 Optical disc player
US5125750A (en) 1991-03-14 1992-06-30 The Board Of Trustees Of The Leland Stanford Junior University Optical recording system employing a solid immersion lens
JPH07272299A (en) * 1994-03-31 1995-10-20 Nippon Columbia Co Ltd Tilt detecting method of optical disk and optical head having tilt detecting function
TW440818B (en) * 1999-06-05 2001-06-16 Ind Tech Res Inst Device and method for obtaining and calibrating compact disk's tilt error signals
JP2002117570A (en) * 2000-10-03 2002-04-19 Fujitsu Ltd Device for processing optical recording medium
KR100882306B1 (en) 2001-08-31 2009-02-10 소니 가부시끼 가이샤 Optical pickup device and recording / playback device
KR20030056573A (en) * 2001-12-28 2003-07-04 한국전자통신연구원 Measurement apparatus for detecting slant angle of solid immersion lens
US7342869B2 (en) 2002-07-08 2008-03-11 Sony Corporation Optical-recording medium playback apparatus and optical-recording medium, including flying optical head features
US7002886B2 (en) * 2002-11-22 2006-02-21 Industrial Technology Research Institute SIL near-field flying head structure to control gap between disc and SIL with three sensor points in front of lens holder
JP2008511089A (en) * 2004-08-20 2008-04-10 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Optical scanning device

Also Published As

Publication number Publication date
EP1724771B1 (en) 2008-12-24
US7462855B2 (en) 2008-12-09
TWI320178B (en) 2010-02-01
DE602006004393D1 (en) 2009-02-05
EP1724771A1 (en) 2006-11-22
KR20060117213A (en) 2006-11-16
JP2006344351A (en) 2006-12-21
US20060255247A1 (en) 2006-11-16

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees